12680251 has 2 divisors, whose sum is σ = 12680252. Its totient is φ = 12680250.

The previous prime is 12680243. The next prime is 12680257. The reversal of 12680251 is 15208621.

It is a strong prime.

It is an emirp because it is prime and its reverse (15208621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12680251 - 2³ = 12680243 is a prime.

It is not a weakly prime, because it can be changed into another prime (12680257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6340125 + 6340126.

It is an arithmetic number, because the mean of its divisors is an integer number (6340126).

Almost surely, 2^12680251 is an apocalyptic number.

12680251 is a deficient number, since it is larger than the sum of its proper divisors (1).

12680251 is an equidigital number, since it uses as much as digits as its factorization.

12680251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 12680251 is about 3560.9340066898. The cubic root of 12680251 is about 233.1896569000.

Adding to 12680251 its reverse (15208621), we get a palindrome (27888872).

The spelling of 12680251 in words is "twelve million, six hundred eighty thousand, two hundred fifty-one".